STM32-H407 is a development board featuring the powerful STM32F407 ARM Cortex-M4F microcontroller with many important peripherals, interfaces and connectors mounted and ready to use. The board can be powered by a number of different sources, can be programmed via two different interfaces, and has GPIO pins available on four 20-pin through-hole pin pads (unpopulated). Add-on modules can be connected via UEXT or via Arduino Shield connectors (Arduino connectors are not installed but are included).

Four full 20-pin ports with the external memory bus for add-on modules (pins not included; see options below)

Four rubber pads for the mounting holes

PCB: FR-4, 1.5 mm (0.062"), soldermask, silkscreen component print

Dimensions: 90 × 76 mm (3.54 × 3")

As well as through the power jack, the board can be powered through USB or by a JTAG/SWD programmer. There is a JST connector for attaching one of these batteries, but it cannot be used to power the board; it is just for battery backup during power-down (e.g. so the Real-Time Clock remains set).